CN201100148Y

CN201100148Y - A valve supply device for engine

Info

Publication number: CN201100148Y
Application number: CNU2007200564620U
Authority: CN
Inventors: 冯子光
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-28
Filing date: 2007-08-28
Publication date: 2008-08-13
Anticipated expiration: 2017-08-28

Abstract

The utility model discloses an air valve gas distribution mechanism of an engine, which comprises an air valve which is sleeved with an air valve spring, a rocker arm which drives the air valve to move in a reciprocating mode and a rotary cam which drives the rocker arm to swing, wherein the rocker arm comprises a rocker arm body which is contacted with a low cam, a transverse groove is arranged in the rocker arm body, a piston pin plate which is provided with through-holes and a return spring are arranged in the transverse groove, a spring seat which is contacted with the return spring is arranged on an opening of the transverse groove, a longitudinal groove is arranged on the transverse groove, a contact block which is contacted with a high cam is arranged in the longitudinal groove, a spring groove is arranged on the contact block, a spring which is traversed through the through hole is arranged in the spring groove, an oil channel which is communicated with the upper transverse groove is arranged on the rocker arm body, the oil channel is connected with a hydraulic-oil channel on a rocker arm shaft, a magnetic valve is arranged on the hydraulic-oil channel, the product has simple structure and convenient operation, thereby self-adaptive air valve gas distribution of the engine is realized, and comparatively good performance indexes under various conditions of the engine are guaranteed.

Description

A kind of air gate distribution device of motor

Technical field

The utility model relates to a kind of air gate distribution device of motor.

Background technique

The size that opens and closes constantly and open path of motor inlet and outlet door is very big to performance impact, the tradition valve actuating mechanism is generally the mechanical type distribution device, it has the low and durable characteristics of energy consumption, but its motion timing and valve lift are fixed, reach best though can guarantee the performance of motor operating mode, but then can not fully take into account other operating modes, this is obviously unfavorable concerning the frequent motor car engine of working conditions change.In view of this, people explore changeable air valve distribution actuation techniques, and have proposed some implementations, as VVT, VTEC, VALVETRONIC or the like.But their structure is not that too complexity is exactly that the effect of air gate distribution is undesirable, thereby is difficult to meet people's usage requirement.

The model utility content

In order to overcome the deficiencies in the prior art, it is a kind of simple in structure that the purpose of this utility model is to provide, the engine valve air distributing device of air gate distribution optimum.

The technological scheme that the invention for solving the technical problem adopted is:

A kind of air gate distribution device of motor, comprise the valve that is set with valve spring, drive the reciprocating rocking arm of valve, and the rotating cam that drives the rocking arm swing, described rotating cam is with the wide camshaft of the two-wheel of physa, its middle part is high cam, the left and right sides is low cam, described rocking arm comprises and hangs down the contacted rocker body of cam, be provided with transverse groove in the described rocker body, be placed with the wrist pin sheet and the return spring of band through hole in the transverse groove, the opening of transverse groove is provided with and the contacted spring seat of return spring, described transverse groove top is provided with cannelure, is placed with in the cannelure and the contacted contact block of high cam, and contact block is provided with spring groove, be provided with the spring that passes through hole in the spring groove, described rocker body is provided with the oil duct that communicates with transverse groove, and oil duct is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve;

As improvement of the technical scheme, described wrist pin sheet is provided with the groove that communicates with oil duct;

As further improvement in the technical proposal, described contact block is a cylindrical body, and spring groove departs from the center line setting of contact block.

The beneficial effects of the utility model are: this product is because it adopts the valve control of independent variable, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable, because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cut-away view of Fig. 1;

Fig. 3 is the C schematic representation of Fig. 2;

Fig. 4 is the B-B cut-away view of Fig. 1;

Fig. 5 is a motion state schematic representation of the present utility model.

Embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, a kind of air gate distribution device of motor, comprise the valve 1 that is set with valve spring 2, drive the reciprocating rocking arm 3 of valve 1, and the rotating cam 4 that drives rocking arm 3 swings, valve spring 2 makes motor valve when compression stroke and expansion space stroke be in closed condition; Described cam 4 is that its middle part is high cam 41 with the wide camshaft of the two-wheel of physa, and the left and right sides is low cam 42.

Described rocking arm 3 comprises and the contacted rocker body 5 of low cam, be provided with transverse groove 51 in the described rocker body 5, be placed with the wrist pin sheet 6 and the return spring 71 of band through hole 61 in the transverse groove 51, the opening of transverse groove 51 is provided with and return spring 71 contacted spring seats 7, described transverse groove 51 tops are provided with cannelure 52, be placed with in the cannelure 52 and high cam 41 contacted contact blocks 8, the through hole 61 that contact block 8 can be positioned at wrist pin sheet 6 vertically moves, contact block 8 is provided with spring groove 81, be provided with the spring 9 that passes through hole 61 in the spring groove 81, described contact block 8 is a cylindrical body, in order to make wrist pin sheet 6 bigger with the area of contact of contact block 8, described spring groove 81 departs from the center line setting of contact block 8, being provided with of spring seat 7 prevented that effectively wrist pin sheet 6 from running into spring 9 in the process of motion, guarantee reliability of products, described rocker body 3 is provided with the oil duct 53 that communicates with transverse groove 51, oil duct 53 is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with the solenoid valve of may command hydraulic fluid pressure.

This product is in order to make hydraulic oil under the control of solenoid valve wrist pin sheet 6 to be promoted forward, and described wrist pin sheet 6 is provided with the groove 62 that communicates with oil duct 53.

The working principle of this product is: with reference to Fig. 4, when motor is worked with lower-speed state, contact with rocking arm 3 with the low cam 42 in the left and right sides of the wide camshaft of the two-wheel of physa, at this moment regulate the solenoid valve of hydraulic fluid pressure owing to be in open mode, so though high cam 41 is in contact with one another with contact block 8, but its driving spring 9 is in empty moving state, rocking arm 3 is not applied power, at this moment the lift of valve and the lower-speed state of a timing apply engine.

With reference to Fig. 5, when motor is worked with fast state, the electromagnetic valve hydraulic fluid pressure makes wrist pin sheet 6 overcome the pressure of return spring 71 toward the motion of spring seat 7 directions, thereby enter the bottom of contact block 8, withstanding contact block 8 can not move downward, at this moment, high cam 41 with the wide camshaft of the two-wheel of physa middle part contacts with contact block 8, this product has only same physa and the rocking arm 3 when two-wheel exterior feature camshaft just can carry out the purpose that surface of contact switches, and the lift of this valve and timing are applicable to the fast state of motor by high cam control.

When motor was returned to lower-speed state, solenoid valve lowered hydraulic fluid pressure, and at this moment, wrist pin sheet 6 is got back to the origin-location under the pressure of return spring 71, thereby makes the lift of valve and the lower-speed state that timing is returned to motor.

This product is because it adopts the valve control of independent variable, and it is rational in infrastructure, overall weight is identical with the rocking arm of common engine, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable is because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.

Claims

1. the air gate distribution device of a motor, comprise the valve (1) that is set with valve spring (2), drive the reciprocating rocking arm (3) of valve (1), and the rotating cam (4) that drives rocking arm (3) swing, it is characterized in that: described rotating cam (4) is the two-wheel exterior feature camshaft with physa, its middle part is high cam (41), the left and right sides is low cam (42), described rocking arm (3) comprises and the contacted rocker body of low cam (5), be provided with transverse groove (51) in the described rocker body (5), be placed with the wrist pin sheet (6) and the return spring (71) of band through hole (61) in the transverse groove (51), the opening of transverse groove (51) is provided with and the contacted spring seat of return spring (71) (7), described transverse groove (51) top is provided with cannelure (52), be placed with in the cannelure (52) and the contacted contact block of high cam (41) (8), contact block (8) can be positioned at the through hole (61) of wrist pin sheet (6), contact block (8) is provided with spring groove (81), be provided with the spring (9) that passes through hole (61) in the spring groove (81), described rocker body (3) is provided with the oil duct (53) that communicates with transverse groove (51), oil duct (53) is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve.

2. the air gate distribution device of a kind of motor according to claim 1, it is characterized in that: described wrist pin sheet (6) is provided with the groove (62) that communicates with oil duct (53).

3. the air gate distribution device of a kind of motor according to claim 1, it is characterized in that: described contact block (8) is a cylindrical body, and spring groove (81) departs from the center line setting of contact block (8).